Electrical waveform analysis

Details Electrical waveform analysis Electrical waveform analysis

1975-12-04

1978-12-19

Murray, Richard

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358 93, 358 96, 358108, 358113, H03B 304

Patent

active

041308352

ABSTRACT:
A circuit for detecting changes in the amplitude of a video signal features a sampler for sampling the signal. The sampled signal is then held and delayed by a selected amount. The delayed and undelayed signals are then compared and when the difference exceeds a threshold, an output signal is supplied.

REFERENCES:
patent: 3812483 (1974-05-01), Graves
patent: 3878323 (1975-04-01), Fisher
patent: 3903357 (1975-09-01), Woolfson et al.
patent: 3943277 (1976-03-01), Everly et al.
patent: 3955046 (1976-05-01), Ingham et al.

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